What a clean and bright classroom, isn’t it—Yes, it’s always clean and bright because it everyday.

We __________ our lives had it not been forthe policeman.

They are just college graduates and don’t realize _____ to start and run a company

He should have come to join in the thorough cleaning. —He _____, I think. It’s not his turn.

He sent me a bunch of flowers and I sent him a basket of fresh apples ________.[ ]